表 4.

骨性安氏Ⅲ类错畸形患者牙周-正畸-正颌联合治疗前后下前牙唇舌侧牙槽骨总面积的变化

Comparison of the whole alveolar bone area before and after the periodontal-orthodontic-orthognathic combined treatment of lower anterior teeth in patients with skeletal Angle class Ⅲ malocclusion

Items	Central incisors	Lateral incisors	Canines
WA-4, whole area at 4 mm apical to the CEJ; WA-6, whole area at 6 mm apical to the CEJ; WA-8, whole area at 8 mm apical to the CEJ; WA-a, whole area at the apex; T0, before treatment; T1, 6 months after PCRS; T2, 12 months after PCRS; T3, before orthognathic surgery; T4, after the periodontal-orthodontic-orthognathic combined treatment. *P < 0.05, a significant difference.
WA-4
T0	0.87±0.93	1.21±1.14	1.57±2.20
T1	2.37±1.95	2.25±2.01	2.88±2.83
T2	2.67±2.17	2.83±2.05	2.30±1.93
T3	2.78±2.50	2.91±2.24	2.31±2.44
T4	2.85±2.37	3.20±2.09	3.28±3.18
P value	< 0.001*	< 0.001*	0.038*
Multiple comparison	T0 < T1, T2, T3, T4	T0 < T1, T2, T3, T4	T0 < T1, T4
WA-6
T0	2.37±2.05	2.72±2.34	4.19±5.12
T1	5.08±3.16	5.18±3.15	6.10±3.91
T2	5.91±3.55	6.04±3.04	5.29±3.64
T3	6.02±3.93	6.19±3.19	5.22±4.34
T4	5.79±3.25	6.48±3.13	6.55±5.18
P value	< 0.001*	< 0.001*	0.174
Multiple comparison	T0 < T1, T2, T3, T4	T0 < T1, T2, T3, T4	T0=T1, T2, T3, T4
WA-8
T0	4.35±3.39	4.30±3.72	7.34±6.91
T1	9.32±4.88	9.31±4.49	10.55±4.97
T2	10.03±5.14	9.90±3.95	9.11±4.90
T3	10.12±5.18	10.21±4.34	8.88±6.04
T4	9.66±4.35	10.70±4.47	10.47±7.12
P value	< 0.001*	< 0.001*	0.124
Multiple comparison	T0 < T1, T2, T3, T4	T0 < T1, T2, T3, T4	T0=T1, T2, T3, T4
WA-a
T0	13.71±8.30	15.53±8.66	29.53±15.91
T1	19.51±8.24	22.32±7.85	32.50±14.43
T2	18.58±8.58	21.37±7.85	29.51±14.40
T3	18.46±8.07	21.38±8.10	29.87±14.66
T4	18.01±8.91	22.93±11.59	30.81±17.84
P value	0.028*	0.002*	0.911
Multiple comparison	T0 < T1, T2, T3, T4	T0 < T1, T2, T3, T4	T0=T1, T2, T3, T4